1. Wyoming Territory was officially organized on March 1, 1869, making it the first territory to grant women the right to vote. This move was seen as revolutionary at the time and represented a significant step towards women's suffrage in the United States.

2. On March 1, 1880, the town of Laramie became the first in the United States to grant women the right to vote in municipal elections. This marked another important milestone in the fight for women's suffrage.

3. The famous outlaw Butch Cassidy was born on March 1, 1866, in Beaver, Utah Territory (which later became part of Wyoming). Cassidy went on to become one of the most notorious criminals of the American West, and his exploits are still legendary today.

4. On March 1, 1872, President Ulysses S. Grant signed into law the Yellowstone National Park Protection Act, which formally designated Yellowstone as the first national park in the United States. This set a precedent that would lead to the creation of America's vast network of national parks and protected areas.

5. In 1977, the Southeast Wyoming Economic Development District was created on March 1, in order to promote economic growth and development in the region. Over the years, the District has played a key role in attracting new businesses and industries to the area, and in supporting the growth of existing businesses.